Demountable drain strainer



Dec. 8, 1931. M, ALLAND 1,835,447

DEMOUNTABLE DRAIN STRAINER Filed April 8, 1931 lNVE.' TOR lim/mae Hand,

BY A

AT ORNEY moved from Patented Dec. 8, 1931 Tiss f DEMOUNTABLE DRAIN' s'rmunnn Applittom led Apri1"8,, 1931.` Serial No. 528,488.

he lobj the. invention-is to "provide improvements inqstrainers for drains, particularly those found in bathtubs, "inks,fbas ins, `and the like, wherein it isl frequently desiredto thoroughly cleanthe V same without other forms of tools.Av y u Another object is to provide-an improved strainer-which vean be inserted into and rethe outlet `otla wide variety of basins or the like, withont in `:any way altering the ylatterfor,the pipe connections asso,- ciatedwith thesame., l e

ffl. `fin-ther fob'ect is to, provide a vstrainer which extends through or adjacentV .to the up-` per exposed suriacejof vthe water in .the'basin, whereby tlgie Vvalve-rel easing means is accessible f without necessitating immersing ones hand in thel water, as when its tem- Still another object isfto `provide in such f al device the combination of a easingadapt-` 1 ed to l:readily fitwithin drain fittings of widely different diameters,A said casing being provided with an orifice vin alignment with the drain pipe vand withV one or more inlet 3o openings l'above the normal llevel at which theA easing cooperates 'with 'the fitting, a removable strainer element being normally positioned within said casing and covering said inletopenings, -a VClosure normally spanning the upper tree end `portion o'f said'casing, and a rod in threaded engagement with and extending through said'olosu're and carrying a valve'upon itsinner end adapted to eooperate with and close at will said outlet oriflee, andsaid closure being removable for thepurpose of removingv and cleaning, both the valve and the strainer. y

And `a still 4further object is to provide. such ai strainer device with mean's, vadapted to loosely the innerwallsvof the usual drain having to employlwrenehes, screwdrivers,.-orv

pipe to prevent the devi-ce from unduly tilting, and also adaptedto engage the usual spider within the drain iixture to prevent the said device from rotating Whenever the valveactuating rod is rotated. v

With these and other objects in mind, the present invention comprises further details of construction and operation which are fully brought'out in the followingdescription when read in conjunction with the accompanying drawings, in which Fig. l is a vertical see-` tion through the lower portion: of a representative type of sink or basin, and showing the improved strainer in operative position and in elevation; Fig- 2 is a bottom plan view of the strainer per se; Fig. 3 is a vertical diametrical section. of the same; and Fig. 4 is a section on, the line 4 4 of Fig. l.

Referring to the drawings, the lower portion 1 of 4a representative type of sink` or basin is shown as being provided Vwith .a drain outlet 2, in association with which is any well-known type of tubular ixture 3, which is spanned upon its interior by a spider or set of angularly disposedribs 4, the function of which is always to prevent large particles entering said fixture and passing through the same and into the drain pipe 5 extending therefrom. The fixture 3 is surmounted by a cylindrical member 6, which forms a virtual extension of said ixture and is 4provided with a radial flange 7 to protect the adjacent edge portion of the basin surrounding the outlet aperture 2. Y

The preferred embed ment of thejinvenpartially closed at its lnormal lower end by a wall 9 having a central outlet orifice 10, said y prevent said casing from tilting into such an Y `so tion comprises an inverted oonicalcasing 8,

tend. above the the fixture 3 spanned by a closure`15 in threaded engagement at 16 with said casing, and pro-vided with a central bushing 17, through which rotatably extends in threaded engagement a rod 18, carrying upon its upper free end a manually engageable knob or head 19, and

its inner and normal lower end comprising a valve 20, adapted to close the outlet orifice 10 oi said 'casing.` With the device in its normal operative position, as sho-wn in Fig. 1, and with the valve closing the casing outlet 10, as shown in Fig."3, liquid may be:

placed within the basin l at the desired height and it will not flow therefrom, until the knob 19 of the valve rod 18 is rotated in such manner as to withdraw said valve fromsaid outlet orifice. Said knob may exsurface of the liquid within the basin if desired, and in any case its relative rotation with respect to said casing is assured Within predetermined limits by virtue of the fact that said casing cannot rotate very far due to the engagement of said bars 11 with the ribs of the spider 4. Thus, when it is desired that the liquid within said basin is to be discharged therefrom, said valve is actuated to permit the liquid to flo-w through the inlet openings 13 oi said'casin g, through the strainer element 14 and thence through the casing outlet orifice 10.' y

lfhen, as in the casel of sai-called beauty parlors and elsewhere, an accumulation of hair and' other` undesirable foreign matter has gathered about the device in general and against the outer surface of the strainer element 14 in particular, the device may at any time be lifted bodily from engagement with and associated elements, the closure 15 removed from said casing, and the strainer element then freely withdrawn so as to permit all of the several parts of the device to be easily and thoroughly cleansed in any desired manner, after which they may be reassembled as here illustrated, either at once or when their further use as a unit is desired. Y

Having thus described my invention, what I claim and desire to protect by Letters Patent of the United States is 1- 1. A drain strainer, comprising a casing adapted to be inserted into and to extend freely from a drain fixture connected with a drain pipe, said casing having an outlet in alignintola *position out of substantially ment with the fixture and also an inlet, a removable closure for said casing, a valve for said outlet, a valve-actuating rod extending through said closure, and a strainer element within said casing and covering said inlet, and removable therefrom after the removal of said closure.

2. A drain strainer, comprising a casing adapted to be inserted into and to extend freely from a drain xture connected with a drain pipe, said casing having an outlet in alignment with the fixture and also an inlet, a removable closure for said casing, a valve for said outlet, a valve-actuating rod extending through said closure, and means carried by and extending from said casing normally into and in i engagement with the Walls of the drain pipe to prevent said casing from tilting liquidtight cooperation with the fixture, and cooperating with the'fixture to prevent rotation of said casing when said rod is rotated.

3. A drain strainer, comprising a casing adapted to be inserted into and to extend freely from a drain fixture connected with a drain pipe, said casing having an outlet in alignment with the fixture and also an inlet, a removable closure for said casing, a valve for'said outlet, av valve-actuating rod extending through said closure, a strainer element within said casing and covering said inlet, and removable therefrom after the removal of said closure, and means carried by and extending from said casing normally into and in engagement with the Walls of the drain pipe to prevent said casing from tilting into a position out of substantially liquid-tight cooperation with the fixture, and cooperating with the fixture to prevent rotation of said casing when said rod is rotated.

4. A drain strainer, comprising an inverted conical casing having an imperforate portion adapted to be inserted into and engage the sides of drain fixtures of Widely varying diameters, saidcasing having an outlet in alignment with the fixture and an inlet above its highest point of permissible engagement with a'drain fixture, a removable closure for said casing, a Valve for said outlet, a valveaetuating rod extending through said closure, and a strainer element covering said inlet within said casing, vand removable therefrom after removal of said closure.

5. A drain strainer, comprising an inverted conical casing having an imperforate portion adaptedto be inserted into and engage the sides of drain fixtures of widely varying diameters, said casing having an outlet in alignment with the fixture and an inlet above its highest point of permissible engagement with a drain fixture, a removable closure for said casing, a valve for said outlet, a valveactuating rod extending through said closure,

said casing, and removable therefrom after a strainer elementI covering said inlet within N removal of said closure, and means carried by and extending from said easing normally into y and in engagement with the Walls of the drain pipe to prevent said casing from tilting into a position out of substantially liquid-tight cooperation with the fixture, and cooperatlng v with the fixture to prevent rotation of said casing when said rod is rotated. y In testimony whereof I have affixed my signature. Y

MAURICE ALLAND. 

